Multiple Myeloma of Testes and Spermatic Cord on 18F-FDG PET/CT

Extramedullary multiple myeloma (EM) has negative prognostic implications on the overall survival as well as progression-free survival. Testis is a rare site of EM, which can be a part of diffuse involvement in multiple myeloma or a site of recurrence in patients with remission. We present a case of EM of testes and left spermatic cord in an 80-year-old man who presented with painless progressive enlargement of the scrotum. 18F-FDG PET/CT revealed tracer avidity of both testes and left spermatic cord. Bilateral radical orchidectomy was subsequently performed, and the diagnosis of multiple myeloma was confirmed on histopathology. Received for publication August 15, 2018; revision accepted December 2, 2018. Conflicts of interest and sources of funding: none declared. Correspondence to: Jyothirmayi Velaga, FRCR, Department of Diagnostic Radiology, Singapore General Hospital, 1 Hospital Dr, Singapore 169608. E-mail: vjyotirmayi@gmail.com. Copyright © 2019 Wolters Kluwer Health, Inc. All rights reserved.

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